240990739705 has 8 divisors (see below), whose sum is σ = 306199998792. Its totient is φ = 181451851008.

The previous prime is 240990739663. The next prime is 240990739729. The reversal of 240990739705 is 507937099042.

It can be written as a sum of positive squares in 4 ways, for example, as 75865540969 + 165125198736 = 275437^2 + 406356^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240990739705 - 2¹⁵ = 240990706937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417592502 + ... + 1417592671.

It is an arithmetic number, because the mean of its divisors is an integer number (38274999849).

Almost surely, 2^240990739705 is an apocalyptic number.

It is an amenable number.

240990739705 is a deficient number, since it is larger than the sum of its proper divisors (65209259087).

240990739705 is a wasteful number, since it uses less digits than its factorization.

240990739705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835185195.

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 240990739705 in words is "two hundred forty billion, nine hundred ninety million, seven hundred thirty-nine thousand, seven hundred five".